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Posted to dev@hive.apache.org by "Yi Zhang (JIRA)" <ji...@apache.org> on 2015/03/30 18:44:52 UTC

[jira] [Created] (HIVE-10142) Calculating formula with each row's value to current row's value in Windowing function

Yi Zhang created HIVE-10142:
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             Summary: Calculating formula with each row's value to current row's value in Windowing function
                 Key: HIVE-10142
                 URL: https://issues.apache.org/jira/browse/HIVE-10142
             Project: Hive
          Issue Type: New Feature
          Components: PTF-Windowing
    Affects Versions: 1.0.0
            Reporter: Yi Zhang


For analytics with windowing function, the calculation formula sometimes needs to perform over each row's value against current tow's value. The decay value is a good example, such as sums of value with a decay function based on difference of timestamp between each row and current row.



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